After watching https://www.youtube.com/watch?v=LbSic4Oo8ME https://www.youtube.com/watch?v=LbSic4Oo8ME , I think fructose metabolism is more important these day

After watching https://www.youtube.com/watch?v=LbSic4Oo8ME https://www.youtube.com/watch?v=LbSic4Oo8ME , I think fructose metabolism is more important these days wrt weight gain. Consuming a high concentrated dose of fructose, say a large amount of non-diet carbonated soda, results in your body switching from burning fat to storing fat like bears preparing for hibernation or birds before they migrate south for the winter. Even if you avoid foods with high amounts of fructose, you have to be careful because under the right conditions, eating a sufficient amount of sodium, your body will convert glucose into fructose and your body could then switch from burning fat to storing fat.